Roller.



H- R. DERBY.

ROLLER. APPLIOATION FILED NOV. 11, 1909. 925,308. Patented June 15,1909. v z-snnnTs-SHET 1.

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H. R. DERBY.

ROLLER. APPLIoATroN FILED Nov.11. 190s.

Patented .nine 15, 1909.

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ROLLER.

Specification of Letters Patent.

Patented June 15, 1909.

Application led November 11, 1908. Serial No. 462,055.

To all whom it may concern:

Be it known that l., HAROLD R. DERBY, a citizen el' the United States, and a resident of Jerscyville, in the county oi' Jersey and CState olI illinois, have invented a new and lmproved Roller, o'll which the following is a l'ull, clear, and exact description.

The invention is a roller suitable 'for both pulverizing and smoothing the ground, the pulverizing taking place when the roller is moved in one direction, and the smoothing performed when thc roller is moved in the opposite direction.

l'orin by a single roller constructed with a series ol' disks independently revoluble, each disk having an approximately central rib, with teeth projecting from each i'ace ol the rib, having radial or pulverizing l' aces at one side and rounded or inclined smoothing l' aces at the opposite side.

Reference is to be had to the accompanying drawings forming a part ol' this specification, in which similar characters ol' reference indicate corresponding p arts in all the views.

Figure 1 is a plan ol' my improved roller complete g Fig. 2 is a section substantially on the line 2 2 ol' Fig. 1 Fig. 3 is a section on theI line 3-3 elA Fig. 1 Fig. 4 is a longitudinal section through one Ol' the roller disks; Fig. 5 is a perspective view oll one of the corner caps ol' the frame and Fig. 6 is a section substantially on the line 6-6 oll Fig. 1.

The frame of the roller is made up ol crossbeams 10 and end beams 11 having overlapping ends, with corner caps 13 slotted out at opposite sides, as clearly shown in Fig. 5, to vlit over and engage the beams at opposite edges. A bolt or other equivalent device 15 passes through each cap and the overlapping ends ol' the beams, as also through the ends olA a bearing hanger 16, which, as best shown in Fig. 3 carries a bearing block 17 which is 'further secured to the end beams by bolts 18 passing through its opposite edges. bearing block 17 is carried an axle 19, on which is journaled the roller proper, the same These two different opl eraticns l am enabled to successfully perconsisting of a series 0iI disks or wheels 2() arranged closely adjacent to each other and independently revoluble, each disk having a substantially central circumferential rib 21, with teeth,22 projecting 'from opposite 'l'aces ol' the rib, with the points ol' the teeth substantially flush with the circumference of the rib. The teeth at one side ol' the rib are in staggered relation to the teeth at the opposite side ol' the rib, and the teeth have approximately radial or pulverizing 'faces at one side and rounding or inclined smoothing laces at the opposite side, as best shown in Fig. 2.

At each side of the roller the beams l0 carry collars 2,3 adjustably held in place by set-screws 24, and between the cellars a tongue is detachably connected to the beams 10, the connection being effected at the rear end of the tongue by hooks 26 which are secured to opposite faces of the tongue and engage under the rear beam. The tongue is lfurther secured to the frame by oblique braces 27 which are attached to the side faces of the tongue near the doubletree, and are secured to the frame by the set screws 24 of the front or adjacent collars. With the tongue applied to that side of the frame as shown in the drawings, when the machine is in operation the radial faces of the teeth on the roller will operate to tear up and pulverize the ground. When the teeth of one disk strike an object, such as a large clod, the disk will momentarily stop and the adjacent disk will continue to revclve and pulverize the clod before the roller passes completely over it. lf the roller is to be used for smoothing, the tongue is detached and applied to the opposite side of the frame similarly as shown to be applied in the drawings.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

l. In a roller, the combination of an axle,

ln the j and a series of roller disks journaled on the axle and independently revoluble, each disk jhaving a circumferential central rib with teeth at opposite faces thereof, the teeth ib, with teeth projecting from opposite having smoothing faces at one side and crushing faces at the opposite side.

2. In a roller, a roller disk having a central circumferential rib, With teeth at opposite faces of the rib, the teeth having apfaces at one side and inproximately radial clined faces at the opposite side.

3. In a roller, the combination of an axle and a series of roller disks carried on the axle,

each disk having a central circumferenta izng face and a smoothing In testimony whereof I name to this specication i two subscribing Witnesses.

l i faces of the rib, each tooth l Vtitnesses:

STEPHEN GATT, CHAs. I` GATT.

having a pulverface.

have signed my 15 n the presence of HAROLD R. DERBY. 

